Heat Loads During Hypersonic -Flight-Conditions at Low Altitudes: Computations and Free-Flight Investigations of Several Testdomes

This paper presents the results of numerical analyses and free-flight experiments to investigate aerokinetic heating of testdomes during accelerated hypersonic flight at low altitudes. A combination of a finite-volume CFD program and a FEA structure program was used to compute the aerokinetic heating of the testdomes. Within the German hypersonic missile program HFK, one realistic free-flight has been carried out. During this free-flight, several temperatures on the dome have been measured. At the present status of the project, an easy integration of the test dome into the nose of the cone of the HFK is desirable. Therefore, in this paper only centrally located test domes are considered. The results of the simulation and of the free-flight measurements are compared and discussed. The measurement technique and the influence of the modelling of the transition region are described.